gcleaner | bd9c3cc80e6627d40b443ce3bd4d4914e4bfaa79ab36ad63cf9aab6f19187c71

General

Target

efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
Size

382KB
MD5

0b210149771c6be2ed5b6b35a5cce602
SHA1

0eb97fd3876ad888b1a9c6eae468ff607a3cf6d3
SHA256

efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c
SHA512

82d1871482bd12cbfa280faaafb1714ad52f6eed816584503583a3d6954e121c019c31f1414dd7c0ca23b081e63f8cf79e6b9766b7ad814aa3f6bb90fac29799
SSDEEP

6144:De/8LygqoByTolrDZkS/C12BZphqoLZ4PUyym3wVLvuVNG23BO:DQ8WgWopZkmCkZphqo2PUyB3wRGV42

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

45.139.105.171

85.31.46.167

107.182.129.235

171.22.30.106

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 7 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
3152	3164	WerFault.exe	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
3864	3164	WerFault.exe	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
4480	3164	WerFault.exe	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
3484	3164	WerFault.exe	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
2964	3164	WerFault.exe	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
2700	3164	WerFault.exe	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
400	3164	WerFault.exe	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1768 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1768 taskkill.exe

pid	process
1768	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1768	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.execmd.exe

description	pid	process	target process
PID 3164 wrote to memory of 1332	3164	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe	cmd.exe
PID 3164 wrote to memory of 1332	3164	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe	cmd.exe
PID 3164 wrote to memory of 1332	3164	efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe	cmd.exe
PID 1332 wrote to memory of 1768	1332	cmd.exe	taskkill.exe
PID 1332 wrote to memory of 1768	1332	cmd.exe	taskkill.exe
PID 1332 wrote to memory of 1768	1332	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe
"C:\Users\Admin\AppData\Local\Temp\efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 732
2⤵
- Program crash
PID:3152

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 736
2⤵
- Program crash
PID:3864

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 740
2⤵
- Program crash
PID:4480

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 780
2⤵
- Program crash
PID:3484

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 780
2⤵
- Program crash
PID:2964

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 916
2⤵
- Program crash
PID:2700

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1332

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "efae384fcbecbe561ae78555645c7eb4cf49bad9a3af6204b584b3572d18fd5c.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3164 -s 724
2⤵
- Program crash
PID:400

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 3164 -ip 3164
1⤵
PID:4732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 3164 -ip 3164
1⤵
PID:1396

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3164 -ip 3164
1⤵
PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3164 -ip 3164
1⤵
PID:5096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3164 -ip 3164
1⤵
PID:1156

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3164 -ip 3164
1⤵
PID:4664

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3164 -ip 3164
1⤵
PID:2804

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3164-134-0x00000000004E0000-0x0000000000520000-memory.dmp

Filesize
256KB

Download
memory/3164-135-0x0000000000400000-0x0000000000465000-memory.dmp

Filesize
404KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads